<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>canvas demo</title>
    <link rel="stylesheet" href="./index.css">
</head>

<body>
    <div class="box">
        <canvas id="canvas"></canvas>
        <canvas id="canvas2"></canvas>
    </div>
    <script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script>
    <script src="./index.js"></script>
</body>

</html>